'Green Lantern' to feature Superman cameo

According to the film's screenwriter Marc Guggenheim, DC Comics's flagship hero makes a brief appearance in the script and the filmmakers are considering offering the part to Superman Returns star Brandon Routh or Smallville's Tom Welling.

Guggenheim said: "I love that stuff in general, and I think the fans would enjoy it. Brandon Routh or even Tom Welling [in Green Lantern] would be awesome. And anything is possible. The beauty part of being the writer, though, is that I don't actually have to make that judgment call."

He added: "You have to be careful when you do things like that, because it sounds great in concept, but when you sit down to watch it, it poses the danger of pulling you out of the film."

Green Lantern focuses on fighter pilot Hal Jordan, who is handed a ring that wields huge power. Studio Warner Bros is targeting a 2010 release for the blockbuster.